什么是(默认的)字符集:
MySQL数据库 MySQL表 MySQL列
什么是(默认的)字符集:
MySQL数据库 MySQL表 MySQL列
当前回答
要查看数据库的默认排序规则:
USE db_name;
SELECT @@character_set_database, @@collation_database;
要查看表格的排序:
SHOW TABLE STATUS where name like 'table_name';
要查看列的排序规则:
SHOW FULL COLUMNS FROM table_name;
查看表的默认字符集
SHOW CREATE TABLE table_name;
其他回答
数据库:
只需使用这些命令:
USE db_name;
SELECT @@character_set_database;
-- or:
-- SELECT @@collation_database;
数据库:
SELECT SCHEMA_NAME 'database', default_character_set_name 'charset', DEFAULT_COLLATION_NAME 'collation' FROM information_schema.SCHEMATA;
示例输出:
mysql> SELECT SCHEMA_NAME 'database', default_character_set_name 'charset', DEFAULT_COLLATION_NAME 'collation' FROM information_schema.SCHEMATA;
+----------------------------+---------+--------------------+
| database | charset | collation |
+----------------------------+---------+--------------------+
| information_schema | utf8 | utf8_general_ci |
| drupal_demo1 | utf8 | utf8_general_ci |
| drupal_demo2 | utf8 | utf8_general_ci |
| drupal_demo3 | utf8 | utf8_general_ci |
| drupal_demo4 | utf8 | utf8_general_ci |
| drupal_demo5 | latin1 | latin1_swedish_ci |
...
+----------------------------+---------+--------------------+
55 rows in set (0.00 sec)
mysql>
SELECT TABLE_SCHEMA, TABLE_NAME, CCSA.CHARACTER_SET_NAME AS DEFAULT_CHAR_SET, COLUMN_NAME, COLUMN_TYPE, C.CHARACTER_SET_NAME FROM information_schema.TABLES AS T JOIN information_schema.COLUMNS AS C USING (TABLE_SCHEMA, TABLE_NAME) JOIN information_schema.COLLATION_CHARACTER_SET_APPLICABILITY AS CCSA ON (T.TABLE_COLLATION = CCSA.COLLATION_NAME) WHERE TABLE_SCHEMA=SCHEMA() AND C.DATA_TYPE IN ('enum', 'varchar', 'char', 'text', 'mediumtext', 'longtext') ORDER BY TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME ;
数据库:
SHOW CREATE DATABASE "DB_NAME_HERE";
在创建数据库(MySQL)时,默认字符集/排序规则总是LATIN,而不是在最初创建数据库时选择了不同的字符集/排序规则
表:
SHOW TABLE STATUS将列出所有的表。
使用过滤:
SHOW TABLE STATUS where name like 'table_123';